US4523524A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low cost antitank rocket motor structure
Assignee: United States Department of the Army
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Filing: 1983-01-31
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Granted: 1985-06-18
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Expires: 2003-01-31
Abstract
Abstract A rocket motor structure which includes a head closure and an aft section th a multiplicity of composite tubes mounted therebetween to define a multiplicity of small chambers for providing an overall rocket motor and in which the aft section includes a nozzle structure for the composite tubes and provides attached fins for guiding and stabilizing the structure. Also, the nozzle structure can be provided with an igniter mounted in the nozzle.
Inventors
- 👤 Bernie J. Cobb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:06
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/08; F02K9/28; F02K9/32; F02K9/34; F02K9/36; F42; F42B; F42B15/00
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
108 words
A rocket motor structure comprising a forward head closure having means on one side for attaching a warhead and openings on the opposite side for receiving a multiplicity of rocket tubes, an aft nozzle structure having a multiplicity of openings at one end, and a multiplicity of rocket tubes mounted at their opposite ends in said openings of said aft nozzle structure and said forward head closure, and a bolt securing means extending between said aft nozzle structure and said head closure and clamping said tubes between said forward head closure and said aft nozzle structure, and said multiplicity of tubes each having a solid propellant mounted therein.
Claim 2
Dependent Claim
108 words
A rocket motor structure comprising a forward head closure having means on one side for attaching a warhead and openings on the opposite side for receiving a multiplicity of rocket tubes, an aft nozzle structure having a multiplicity of openings at one end, and a multiplicity of rocket tubes mounted at their opposite ends in said openings of said aft nozzle structure and said forward head closure, and a bolt securing means extending between said aft nozzle structure and said head closure and clamping said tubes between said forward head closure and said aft nozzle structure, and said multiplicity of tubes each having a solid propellant mounted therein.
Claim 3
Dependent Claim
45 words
A rocket motor structure as set forth in claim 1, wherein said forward head closure and said aft nozzle structure have sealing means for sealing around the ends of said tubes, and wherein said aft nozzle structure has a plurality of fins pivotably attached thereto.
Claim 4
Dependent Claim
28 words
A rocket motor structure as set forth in claim 2, wherein said aft nozzle structure has a central exhaust opening with an igniter closing said central exhaust opening.
Claim 5
Dependent Claim
25 words
A rocket motor structure as set forth in claim 1, wherein said multiplicity of tubes are each made of a composite structure of graphite fiber.
References Cited (Backward Citations)
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Cited
US3093964A
Cited
US3722413A
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Cited
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-06-17 | 1988-12-17 | 1989-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-06-17 | 1992-12-17 | 1993-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-06-17 | 1996-12-17 | 1997-06-18 | $7700.00 | Window Closed / Lapsed |